Add mideleg register support

Author: archshift

src/register/mideleg.rs

@@ -0,0 +1,76 @@
+//! mideleg register
+
+use bit_field::BitField;
+
+/// mideleg register
+#[derive(Clone, Copy, Debug)]
+pub struct Mideleg {
+    bits: usize,
+}
+
+impl Mideleg {
+    /// Returns the contents of the register as raw bits
+    #[inline]
+    pub fn bits(&self) -> usize {
+        self.bits
+    }
+
+    /// User Software Interrupt Enable
+    #[inline]
+    pub fn usoft(&self) -> bool {
+        self.bits.get_bit(0)
+    }
+
+    /// Supervisor Software Interrupt Enable
+    #[inline]
+    pub fn ssoft(&self) -> bool {
+        self.bits.get_bit(1)
+    }
+
+    /// User Timer Interrupt Enable
+    #[inline]
+    pub fn utimer(&self) -> bool {
+        self.bits.get_bit(4)
+    }
+
+    /// Supervisor Timer Interrupt Enable
+    #[inline]
+    pub fn stimer(&self) -> bool {
+        self.bits.get_bit(5)
+    }
+
+    /// User External Interrupt Enable
+    #[inline]
+    pub fn uext(&self) -> bool {
+        self.bits.get_bit(8)
+    }
+
+    /// Supervisor External Interrupt Enable
+    #[inline]
+    pub fn sext(&self) -> bool {
+        self.bits.get_bit(9)
+    }
+}
+
+read_csr_as!(Mideleg, 0x304, __read_mideleg);
+set!(0x303, __set_mideleg);
+clear!(0x303, __clear_mideleg);
+
+set_clear_csr!(
+    /// User Software Interrupt Pending
+    , set_usoft, clear_usoft, 1 << 0);
+set_clear_csr!(
+    /// Supervisor Software Interrupt Pending
+    , set_ssoft, clear_ssoft, 1 << 1);
+set_clear_csr!(
+    /// User Timer Interrupt Pending
+    , set_utimer, clear_utimer, 1 << 4);
+set_clear_csr!(
+    /// Supervisor Timer Interrupt Pending
+    , set_stimer, clear_stimer, 1 << 5);
+set_clear_csr!(
+    /// User External Interrupt Pending
+    , set_uext, clear_uext, 1 << 8);
+set_clear_csr!(
+    /// Supervisor External Interrupt Pending
+    , set_sext, clear_sext, 1 << 9);

src/register/mod.rs

@@ -68,7 +68,8 @@ pub mod mhartid;
 // Machine Trap Setup
 pub mod mstatus;
 pub mod misa;
-// TODO: medeleg, mideleg
+// TODO: medeleg
+pub mod mideleg;
 pub mod mie;
 pub mod mtvec;
 // TODO: mcounteren